AOONALASCHKAN SWALLOW. 11? 



feathers : the eggs are grey, spotted with brown, 

 and are two in number : they follow the herds of 

 cattle for the sake of the flies. 



AOOJfALASCHKAN SWALLOW. 

 (Hirundo unalaschkensis.) 



Hi. nigricans subtus cinerascens, uropygio albido. 



Dusky Swallow, beneath ash-coloured, with a whitish rump. 



Hirundo unalashkensis. Gmel. Syst.Nat. 1. 1025. Vieil. Ois. 



del'Amer.Scpt. 1. 64. 



Hirundo aoonalaschkensis. Lath. Ind. Orn. 2.577- 15. 

 Hirondelle d'Ounalashka. Vieil. Ois. de I'Amer. Sept. 1.6-i. 

 Aoonalaschkan Swallow. Lath. Gen. Syn. 4. 571. 15. 



THIS, as its name implies, inhabits Aoonalaschka : 

 it is in length four inches and a half: its beak is 

 dusky : the prevailing colour of the plumage is 

 obscure black ; with the sides of the head, and 

 under parts of the body, dusky cinereous : rump 

 dirty white : tail slightly forked : legs dusky. 



